<template>
  <li :class="isActive?'active':''" @mouseenter="mouseChangeHandle('enter')" @mouseleave="mouseChangeHandle('leave')">
    <label>
      <input type="checkbox" :checked="done" @click="singleCheckHandle(id)"/>
      <span>{{thing}}</span>
    </label>
    <button class="btn btn-danger" @click="singleDeleteHandle(id)">删除</button>
  </li>
</template>

<script>
export default {
    name:"Item",
    props:['id','thing','done','singleCheckHandle','singleDeleteHandle'],
    data(){
        return {
            isActive:false
        }
    },
    methods:{
        mouseChangeHandle(type){
            this.isActive = type === 'enter'
        }
    }
};
</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}
li.active{
    background: #ccc;
}
li.active button{
    display: block;
}
</style>